In a review (May 2021) of the adverse reactions associated with nivolumab and ipilimumab, respectively, Health Canada concluded that there may be a link between nivolumab used alone or in combination with ipilimumab and the risks of autoimmune hemolytic anemia, aplastic anemia, cytokine release syndrome and tumor lysis syndrome.
The Canadian product safety information (Canadian Product Monograph) for nivolumab has been updated to include a warning for the risk of autoimmune hemolytic anemia. Health Canada is working with the manufacturer of nivolumab to also include the risks of aplastic anemia, cytokine release syndrome, and tumor lysis syndrome in the Canadian Product Monograph (CPM).